code: def __len__(self):
      return len(self.samples)
  
file_path: NeMo/nemo/collections/multimodal/data/clip/clip_dataset.py
imports: from functools import partial
  from typing import Any, List, Union
  import torch
  from torch.utils.data import Dataset, default_collate
  from nemo.collections.multimodal.data.clip.augmentations.augmentations import image_transform
  from nemo.collections.multimodal.data.clip.imagenet_zeroshot_data import imagenet_classnames, openai_imagenet_template
  from nemo.collections.multimodal.data.common.webdataset import WebDatasetCommon
  from nemo.collections.nlp.data.language_modeling.megatron.data_samplers import MegatronPretrainingSampler
  from nemo.collections.vision.data.megatron.image_folder import ImageFolder
label_desc: Use image node_id 3 for calling the ImagenetClassnameDataset obj's underlying member method code with example usage: obj.__len__() and returns: len